... sawdust. The charge was black powder in a paper bag, and you stuck it at the bottom end of the pipe and put a bit of fuse into the touch-hole—but, of course, you must take care it penetrates the charge. The shell-fuse has a pinner with a detonator with the right length of fuse shoved into it; you wrap some clay round the end of the fuse to stop the flash of the charge from detonating the shell. Well, ... — The Pretty Lady • Arnold E. Bennett